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zeekayandHanzo Dev
1008926ef7
Extracted from @hanzo/ui pkg/ui/src/backends/svelte with its history. It lived inside a React component library, which meant every consumer of @hanzo/ui resolved svelte whether they rendered a single Svelte component or not, and the package declared peer svelte>=5 against a dev svelte ^4.2.20 — two answers to one question. Three runtime dependencies, all load-bearing: class-variance-authority for the variants the components already used, and clsx + tailwind-merge behind cn. The cn helper is vendored (17 lines) rather than imported back from @hanzo/ui, because depending on the package this was extracted from would undo the split. No design-system runtime, no icon pack, no CSS-in-JS. svelte-check: 50 files, 0 errors. Co-authored-by: Hanzo Dev <[email protected]>
113 lines
4.0 KiB
Svelte
113 lines
4.0 KiB
Svelte
<!--
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Button — the svelte-backend flagship. Every class is a STANDARD design token
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(bg-primary, text-primary-foreground, bg-accent, bg-secondary, bg-destructive,
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border-input, ring-ring) so it renders solid against the Hanzo theme
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(theme.css) or any host that defines the standard variables. The variant/size
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vocabulary mirrors the shadcn backend's `buttonVariants` one-for-one, so a
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component's props read identically across backends. Fonts are inherited
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(text-sm font-medium), never a hard-coded family.
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-->
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<script lang="ts" context="module">
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import { cva, type VariantProps } from 'class-variance-authority'
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export const buttonVariants = cva(
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'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] shrink-0 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*="size-"])]:size-4',
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{
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variants: {
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variant: {
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default: 'bg-primary text-primary-foreground hover:bg-primary/90',
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destructive:
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'bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20',
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outline:
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'border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground',
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secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
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ghost: 'hover:bg-accent hover:text-accent-foreground',
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link: 'text-primary underline-offset-4 hover:underline',
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// Hanzo compatibility variants (parallel to the shadcn backend).
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primary: 'bg-primary text-primary-foreground shadow hover:bg-primary/90',
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linkFG: 'text-primary underline-offset-4 hover:underline',
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linkMuted:
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'text-muted-foreground underline-offset-4 hover:underline hover:text-foreground',
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},
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size: {
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default: 'h-9 px-4 py-2 has-[>svg]:px-3',
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sm: 'h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5',
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lg: 'h-10 rounded-md px-6 has-[>svg]:px-4',
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icon: 'size-9',
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'icon-sm': 'size-8',
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'icon-lg': 'size-10',
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},
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},
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defaultVariants: { variant: 'default', size: 'default' },
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},
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)
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export type ButtonVariant = NonNullable<VariantProps<typeof buttonVariants>['variant']>
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export type ButtonSize = NonNullable<VariantProps<typeof buttonVariants>['size']>
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</script>
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<script lang="ts">
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import { cn } from './core/cn'
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let className: string | undefined = undefined
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export { className as class }
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export let variant: ButtonVariant = 'default'
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export let size: ButtonSize = 'default'
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export let type: 'button' | 'submit' | 'reset' = 'button'
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export let disabled = false
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export let loading = false
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/** Render an anchor instead of a button when set. */
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export let href: string | undefined = undefined
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$: classes = cn(buttonVariants({ variant, size }), className)
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$: iconOnly = size === 'icon' || size === 'icon-sm' || size === 'icon-lg'
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</script>
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{#if href}
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<a
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{href}
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class={classes}
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data-slot="button"
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data-variant={variant}
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data-size={size}
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aria-disabled={disabled || undefined}
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on:click
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on:keydown
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{...$$restProps}
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>
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<slot />
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</a>
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{:else}
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<button
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{type}
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class={classes}
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data-slot="button"
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data-variant={variant}
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data-size={size}
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disabled={disabled || loading}
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aria-busy={loading || undefined}
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on:click
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on:keydown
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on:mouseenter
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on:mouseleave
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on:focus
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on:blur
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{...$$restProps}
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>
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{#if loading}
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<svg
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class={cn('animate-spin', !iconOnly && 'mr-1')}
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width="16"
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height="16"
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viewBox="0 0 24 24"
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fill="none"
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aria-hidden="true"
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>
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<circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4" />
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<path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
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</svg>
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{/if}
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<slot />
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</button>
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{/if}
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